15.28% is the change from 720 to 830
Calculation steps:
[( 830 - 720 ) ÷ 720] x 100 = 15.28%
Formula
Percentage change = [(830 - 720) / 720] x 100
Subtract the new number by the original number
830 - 720 = 110
110 ÷ 720 = 0.1527777777777778
0.1527777777777778 x 100 = 15.28%